Science Source Stock Photo - T4 bacteriophage infecting E. coli, TEM

T4 bacteriophage infecting E. coli, TEM

Description: Transmission electron micrograph of bacteriophage T4 (virus infecting bacteria), 60 minutes after the injection of its viral DNA into the bacterium Escherichia coli. The phage, specific to E.coli, is secured to the surface by means of spidery tail fibers. The tail, a contractile sheath, shortens to allow a syringelike tube (visible below base plate of tail) to penetrate the cell membrane, emptying the DNA contents of the head into the bacterium. The capsid, a protein coat surrounding the DNA, remains outside the cell. Synthesis & assembly of the phage within the cell follows rapidly. Mag: x220,000 (at 10x8 size).

Credit:

J. Broek / Biozentrum, University of Basel/Science Source

Unique identifier: SS2113186

Legacy Identifier: SA0408

Type: Image

Size: 3771px × 2835px (~30 MB)

Add to cart

Direct link to Image

Copy URL to clipboard

Add to lightbox My First Lightbox

Add to cart

Company

Connect